TSF 101 is an IP filter for connecting IP networks with different security classifications.
Thales's Trusted Security Filter (TSF 101) is a stateless IP filter that's used for connecting IP networks that have different security classifications. It has predefined, non-configurable filter criteria, tailored for the specific environment, which allows messages that comply with those criteria to flow from the most secure network to the less secure. All rejected messages are logged and time-stamped.
The TSF101 is suitable in static, closed environments such as marine vessels and control rooms, and is certified to Common Criteria, EAL5.